| 277 | } |
| 278 | |
| 279 | fn strip_html(html: &str) -> String { |
| 280 | let mut result = String::new(); |
| 281 | let mut in_tag = false; |
| 282 | let mut in_script = false; |
| 283 | let mut in_style = false; |
| 284 | let chars: Vec<char> = html.chars().collect(); |
| 285 | let len = chars.len(); |
| 286 | let mut i = 0; |
| 287 | |
| 288 | while i < len { |
| 289 | let c = chars[i]; |
| 290 | |
| 291 | if c == '<' { |
| 292 | if i + 7 <= len { |
| 293 | let tag: String = chars[i..i + 7].iter().collect(); |
| 294 | let tag_lower = tag.to_lowercase(); |
| 295 | if tag_lower.starts_with("<script") { |
| 296 | in_script = true; |
| 297 | } else if tag_lower.starts_with("<style") { |
| 298 | in_style = true; |
| 299 | } |
| 300 | } |
| 301 | in_tag = true; |
| 302 | i += 1; |
| 303 | continue; |
| 304 | } |
| 305 | |
| 306 | if c == '>' { |
| 307 | if in_script { |
| 308 | if i >= 8 { |
| 309 | let end_tag: String = chars[i - 8..=i].iter().collect(); |
| 310 | if end_tag.to_lowercase() == "</script>" { |
| 311 | in_script = false; |
| 312 | } |
| 313 | } |
| 314 | } else if in_style { |
| 315 | if i >= 7 { |
| 316 | let end_tag: String = chars[i - 7..=i].iter().collect(); |
| 317 | if end_tag.to_lowercase() == "</style>" { |
| 318 | in_style = false; |
| 319 | } |
| 320 | } |
| 321 | } |
| 322 | in_tag = false; |
| 323 | i += 1; |
| 324 | continue; |
| 325 | } |
| 326 | |
| 327 | if !in_tag && !in_script && !in_style { |
| 328 | if c == '&' { |
| 329 | if i + 4 <= len { |
| 330 | let entity: String = chars[i..i + 4].iter().collect(); |
| 331 | match entity.as_str() { |
| 332 | "<" => { |
| 333 | result.push('<'); |
| 334 | i += 4; |
| 335 | continue; |
| 336 | } |